Re: antique safe combinations

I also have a safe that has not been open in years. no combo. The only thing written on it is: The meilink mfg co toledo ohio July 2 1907 oct13 1908 If anyone knows how to find the combo or how to open it without ruining it please email me and let me know! can you really put a stethiscope up to it while turning it to find out the combo?